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| 6 | A cone bearing tree able to survive long cold winters with long thin needles rather than leaves. |   
| 7 | A ridge like mass of rock, gravel, sand and clay carried and deposited by a glacier. |   
| 8 | A type of natural vegetation that is adapted to mediterrian climates, small evergreen trees and low bushes or scrub. |   
| 10 | A type of tree that sheds its leaves during one season. |   
| 11 | All the forms of water that fall to earth from the atmosphere including rain and snow. |   
| 13 | The interaction of plant life, animal life and the physical environment in which they live. |   
| 14 | One complete orbit of the Earth around the sun, the Earth completes on revolution every year. |   
| 16 | Either of the two times each year when day and night are nearly equal length everywhere on Earth |   
| 17 | A meat eating animal. |   
| 18 | A layer of soil just below the Earth’s surface that stays permanently frozen. |   
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| 1 | The spinning motion of the Earth, like a top on its axis as it travels through space. |   
| 2 | Either of the two times a year when the sun appears directly overhead at the tropics of cancer and Capricorn. |   
| 3 | A temperate grassland characterized by a great variety of grasses. |   
| 4 | The term used for the weather patterns that an area typically experiences over a long period of time. |   
| 5 | A region in which temperatures are always cool or cold where only specialized plants can grow. |   
| 6 | The type of climate found in the great central areas of the continents found in the northern hemisphere characterized by cold snowy winters and warm hot summers. |   
| 9 | A plant eating animal. |   
| 12 | The condition of the bottom layer of the earth’s atmosphere in one place over a short period of time. |   
| 15 | The term used to describe a major type of ecosystem that can be found in various regions throughout the world |   
| 19 | The boundary between two masses of air that vary in temperature and density. |   
| 20 | A tropical grassland with scattered trees located in warm lands near the equator. |   
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